Leak‑proof & seal‑free No dynamic shaft seals, so almost no fluid leakage — safe for corrosive, toxic, or hygienic liquids.

 

Dry-run safe Can run without liquid for a long time without damage, unlike many centrifugal or gear pumps.

 

Self-priming capability Able to suck liquid from below the pump, works well even with air in the line.

 

Gentle on fluids Low shear force, so it doesn’t damage sensitive liquids (e.g., reagents, food, beverages).

 

Handles viscous & dirty fluids Good for liquids with particles, high viscosity, or mild abrasives.

 

Easy maintenance Few moving parts; usually only the diaphragm and valves need occasional replacement.

 

Good metering & dosing stability Stable output at a fixed speed, widely used for accurate dosing in industry, lab, and water treatment.

 

Wide chemical compatibility Diaphragm and valves can be made of PTFE, EPDM, etc., to resist acids, alkalis, and many chemicals.